Do you wanna come with me? 'Cause if you do, then I should warn you - you're gonna see all sorts of things. Ghosts from the past. Aliens from the future. The day the Earth died in a ball of flame. It won't be quiet, it won't be safe, and it won't be calm. But I'll tell you what it will be: The trip of a lifetime!

Since I liked quite a few of the artists you mentioned, I figured I'd throw in a few suggestions:

Tonight Alive - female-fronted, if you like things like Icon For Hire and Paramore there's a good chance you'll like this one too. Bonus points because they're Australian.

Fit For Rivals - kind of along the same lines. They don't have as much stuff out there, but I think they are working on new content at the moment.

Crown the Empire - their most recent album is my favourite, but I do quite like their older stuff. I was lucky enough to see them in concert last year, which was awesome. I think they're technically classified as post-hardcore, but most of the music is catchy and some of the choruses in particular can be kind of "poppy".

Famous Last Words - another post-hardcore one, but I would highly recommend them. Their first album is absolutely fantastic, and I'd also recommend the short film they made to go with it (a note of warning, though: said film is kind of violent and could be considered triggering). If you're going to listen to their latest two albums, listen to them from start to finish - they're both concept albums and as such are much more powerful if you listen to them in order.

Hopefully you find something you like somewhere in there. Happy listening!